/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for Additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */

/* ================================================================
 * About NPOI
 * Author: Tony Qu 
 * Author's email: tonyqus (at) gmail.com 
 * Author's Blog: tonyqus.wordpress.com.cn (wp.tonyqus.cn)
 * HomePage: http://www.codeplex.com/npoi
 * Contributors:
 * 
 * ==============================================================*/
using System;
using System.Collections;

namespace Jw.Utils.NPOI.Util.Collections
{
    //public sealed class EmptyEnumerable
    //    : IEnumerable
    //{
    //    public static readonly IEnumerable Instance = new EmptyEnumerable();

    //    private EmptyEnumerable()
    //    {
    //    }

    //    public IEnumerator GetEnumerator()
    //    {
    //        return EmptyEnumerator.Instance;
    //    }
    //}

    //public sealed class EmptyEnumerator
    //    : IEnumerator
    //{
    //    public static readonly IEnumerator Instance = new EmptyEnumerator();

    //    private EmptyEnumerator()
    //    {
    //    }

    //    public bool MoveNext()
    //    {
    //        return false;
    //    }

    //    public void Reset()
    //    {
    //    }

    //    public object Current
    //    {
    //        get { throw new InvalidOperationException("No elements"); }
    //    }
    //}
}
